#include<stdio.h>
int main()
{
	printf("starting now:\n");
	one_three();
	two();
	printf("done!");
	return 0;
}
int one_three(void)
{
	printf("one\n");
	return 0;
}
int two(void)
{
	printf("two\n");
	printf("three\n");
	return 0;
}